Removable head spool structure



Sept. 16, 1952 J. R. Moss REMOVABLE HEAD SPOOL STRUCTURE 4 Sheets-Sheet 1 Filed July 27, 1950 Moss JESSE 1Q.

INVENTOR L E/ 4 W ATTORNEYS Sept- 16, 1952 .1. R. MOSS 2,610,811

REMOVABLE HEAD SPOOL STRUCTURE Filed July 27, 1950 4 Sheets-Sheet 2 1/5351: 2. Moss INVENTOR ATTORNEYS 4 Sheets-Sheet I5 INVENTOR JEssE B Moss.

ATTORNEYS 95 9g /06 //0 se /05 J. R. MOSS REMOVABLE HEAD SPOOL STRUCTURE Sept. 16, 1952 Filed July 27, 1950 Sept. 16, 1952 J. R. MOSS REMOVABLE HEAD SPOOL STRUCTURE 4 Sheets-Sheet 4 Filed July 27, 1950 (/fSSE E Moss,

I NV E NTOR ATTORNEYS Patented Sept. 16, 1952 UNITED STATES S OFFICE.

2;6i0,811 S I Q S REMOYABIJE'HEAD SPOOL. sT'RiioTjURii Jesse Moss, Johnson City, N. Y. ApplicationJuly e7, 1950, Serial No. 176,143

invention relates to improvements in.

spools and more especially,in".. spools of a type employed in the textile industry for use on uptwisters, spinning frames, twisters, and the'li'ke and also for use as a warping spool.

It is well knownto those familiar with the art that in many instances yarnis withdrawn from a spool to a point disposed insubstantialaxial alinement with the spool and'this requires that. the yarn be withdrawn past a flange or head-hav-- ing a rounded peripheral edgeand, upon thisedge becoming scarred or damaged in any Way, such as by handling the spools; the yarn, upon being withdrawn therefrom, will usually-be severed or broken from engaging the rough or scarred places on the periphery of the head orthe spool. Here tofore, this has required that the spools be "dis carded or that a new head beprovided ior'the spools. l

It. is therefore an objectbfthis invention to provide an improved spool structure having a tubular portion and removable headtportions and being provided with rmaans for easily securing the head portions to the tubular'portion;

It is another object of this inventionto provide an improved spool structure comprising a. tubular body member having apluralityof longitudinally extending-projections on the inner surface there of'and to further providea disk adapted'to fit in the tubular member andhaving notches'th'ere to coincide withlthe projection on the tubular member and the projections or'rthe tubular mem-' ber being notched or cut away intermediate the ends thereof and at points, adjacent one another so that, upon the disk being inserted in the tubu larmembenthe diskm'ay be partially rotatedfin the notches in the longitudinally extendlng'pro' jections and whereupon a removableflan e may be fastened, as by screws, to-thediskto' thus lock the flange in-pla'ce against the end of the member forwithdrawing' the disk withthe flange.

fromlthe. tubular .mernbei'flwheniit'is desired to replace the same.

It is another obJect' thisinvntio i o l r 1 17'C1ai'ms (Cl. 242-124) vide a bobbin comprisinga tubular bodyhaving a plurality of spaced longitudinally extending ribs or projections on the inner surface thereof, which.

are provided with coinciding notches to ,form .a, circular groove on the inner surface oiytl e t-ubue; lar body adjacent each endthereof, and--, to, :fur-u ther, provide a disk having notches therein adapts ed'to coincidewith the ribs in the tubulanbody and to fit within the tubular member whereby the disk may be insertedin the tubular mernberl'and partially rotated in the oiroula'itg' i'oove to where its notcheswill not coincide with the ribs to prevent'the disk from beingre'inove'd fromv the tubu lar member. A flange may then be secured to the disk and held if! piece at the end. Of-th tubular body.

' In one form of the invention there is provided.

in 'a structure of the ty e describ'ed,,,a substantially circular headblo'ck having a pluralityiof longitudinally extending grooves onth'e outer surface th'e'i'eoflwhich i insertedinthe end of the.

tubular member, this block havingllongitudinall'y extending grooves thereinv which coincide with the ribs in the tubular member and also having,

longitudinally extending grooves therein through which screws may be inserted; thedi'sk'being provided with threaded bores for the inner ends of the screws. 'A' head member or flange of substanti'ally greater diameter thanrthe. diameter or the tubular body is then fitt'e'ed. against the outer end of the tubular body and the head block and this disk is provided with, a,plurality of bores through which the screws may extend for secur ing the disk against the tubular body, th'ese screws extending through the grooves provided, therefor in the head block and being threadalillyv embedded, in. the disk at the.v inner endofrthe headbld'ckr Iti's another object of this inventionfto provide a spool or bobbin of the type described in which the headblock extends through. a suitable opening inthe flange and is provided with a handle or knob; for carryingthe spool. U

Some of the objects of the invention having been stated, other objects will appearv as the" description proceeds when taken in connection with the accompanying drawings in which-a I Figure 1 is an elevation. showing one form of -a bobbinor spoolembodying the features of the present invention;

ure 1;

' Figure 3 is an enlarged sectionalplan view,

with parts brokenaway and with other'parts' inelevation, taken substantiallyalongfthe line 3"3 in Figure 2', and showing the manner'in'which the head'member is secured to the tubular body of 1 the spool I .l' Figure-4 is an enlarged sectional plan View taken:substantially along the '1ine-4-41 in Fig ure 2 and showing the manner in which the lower base member of the spool is secured to the tubular body portion thereof;

Figure 5 is an enlarged exploded isometric view of the upper portion of the spool or bobbin shown in Figure 1;

Figure 6 is an elevation, with parts broken away, showing a modified form of spool embodying features of the present invention;

Figure 7 is an inverted plan view looking at the bottom of the spool shown in Figure 6;

Figure 8 is a vertical sectional view taken substantially along the line 8-8 in Figure 6.

Figure 9 is a top plan view of the spool shown in Figure 6 with part of the head member or flange thereof broken away;

Figure 10 is a sectional plan view taken substantially along the line l0l0 in Figure 6.

Figure 11 is a partially exploded isometric view of the spool shown in Figures 6 to 10, inclusive, with parts broken awayand other parts in section and showing the spool tilted for purposes of clarity.

Referring more specifically to the drawings, the numeral I0 broadly designates the tubular member or body of the improved bobbin or spool. This tubular body l0 includes an outer or first tube ll, preferably of a plastic or a pressed fiber or other close-grained material, which fits snugly over a second or inner tube I2, this second tube preferably being of metal such as aluminum to give additional strength to the bobbin or spool and so as to be as light in weight as possible. The outer tube II maybe adhesively secured to the outer surface of the second tube l2 or it may be moulded integral therewith as desired.

The second tube l2 is'provided with arplurality of circularly spaced longitudinally extending reinforcing ribs or projections l3 which are preferably cast integral'with the second tube l2. The second tube [2, being of metal and being reinforced by the ribs l3, serves as a strengthening member for the tubular body 10, andfthe outer tube ll, being made of a plastic material, may be provided with a smoother outer surface than would be possible with a metal suchas aluminum and, also, upon the exterior surface of the outer tubular member H being scarred or otherwise damaged, the outer tubular member ll, may be removed from the second tubular member l2 and replaced with a similar tubular member having a smooth outer surface thus considerably lengthening the life of thebobbin or spool.

The outer tube II also serves as an electrical insulator against static electricity and inasmuch as the yarns wound onto many types of bobbins or spools substantially of the type shownin the drawings, are usually synthetic and are subjected to relatively extensive variations in temperature causing them to expand and contact, the outer tube II will assist in minimizing the variations in diameter and length of the tubular .body 10 of the spool due to these variations in operating temperatures, and the inner tube I2 will prevent collapse of the tubular body I 0 under contraction of the yarns wound thereon.

Adapted to be secured against opposed ends of the tubular body [0, in a manner to be presently described, are a firstand a second or an upper and a lower headmember broadly designated at and 2|, respectively. In many instances these head members 20 and 2| maybe identical and are shown in Figures'l,=2, 3, and 4 as being substantially identical. A detailed description of the first head member 20 will now be given.

The first head member 20 comprises a first head block 23 which is substantially circular in cross-section and is provided with a plurality of circularly spaced, longitudinally extending grooves 24 cut in its periphery, each of the grooves 24 being adapted to coincide with and to slidably fit in engagement with the respective projections I3 in the interior of the tubular body 10, and the first head block 23 being adapted to slidably or loosely fit within the upper portion of the second tube I2 as shown in Figure 2.

Thefirst head block 23 is also provided with a plurality of spaced grooves 25, there being one of these grooves 25 disposed between each of the grooves 24. The grooves 25 are preferably of greater depth than the grooves 24 and are provided for accommodation of screws 28 for securing a head flange or disk 21 to the upper or outer surface of the first head block 23 as well as to the adjacent outer edge of the tubular body It.

In order to assist in sealing the upper end of the tubular body I0 as shown in Figure 2, the lower or inner surface of the disk 21 is provided with an annular groove 30 for reception of the upper edges of the outer tube H and the second tube I2 and it will be noted that the upper surface of the first head block 23 is spaced below the upper edges of the tubular members II and [2 so the medial portion of the disk 21 may be inserted within the second tube l2. The first head block 23 has an upwardly projecting restricted or pilot portion 32 integral therewith which is preferably tapered slightly and the disk or flange 21 is provided with bore 33 which is adapted to fit snugly over the upwardly projecting restricted portion 32 of the head block 23.

The head block 23 also has a restricted outer portion 34 integral therewith which is of substantially less diameter than the. restricted portion 32 thus forming a shoulder 35 which is adapted to be engaged by a handle or knob 36 secured on the restricted portion 34 of the head block 23 as by an adhesive or by the use of a synthetic resin which, upon being subjected to relatively high temperatures, will become pliable and will permit removal of theknob 36 from the restricted portion 34 of the head block 23 so the disk 21 may be removed from the restricted portion 32 for replacement purposes. The knob 36 is provided to be grasped by an operator for carrying the bobbin or in a dofiing operation as on a spinning frame or twister. v

In order to secure the first head block 23 and the flange or disk 21 in position at the upper end of the tubular body In, the inner surface of the second tubular member l2 has an annular groove therein spaced from the upper surface thereoi and which is of the same depth as the ribs l3 or, in other words, each of the ribs I3 is provided with a notch or groove 40 (Figure 5) which is of sufficientwidth to permit a locking member or disk 4| to be slidably rotated therein. This locking disk 4| has a-plurality of circularly spaced notches or slots 42 in the periphery thereof which are spaced so as to coincide with the ribs l3 of the second tube I2. The locking disk 4| also has a plurality of circularly spaced threaded bores 43 therein, these bores 43 being spaced according to the spacing of the longitudinally extending grooves 25 in the first head block 23 and being provided for the reception of the screws 26. The locking disk 4| also has a centrally disposed opening 44 therein for purposes to be presently described.

' It is 'thus seen-that -the= disk4 I, which. is :of slightly less diameter than' the interior diameter of thesecond tube! 2; may-beinserted in the tube It with the notches in theperiphery-thereof straddling the-longitudinallyextending ribs-J3. I

knob had been positioned on the restricted por ti-on3l-of" the pilot 32, the screws 26, which-slidablypenetrate the flange z'l then extend through the grooves of the head block 23 andare threadably-embedded in-threaded bores 43* and; by ti'ghtening' the screws- 26in the threaded bores 43-, the-locking disk'li is-"pul-led tightly; -against' the upper walls of the'notches 4B in'theribs '13 thus--'forcing the flange; 21 tightly against the outer edges of the outer'tube-"I I- and-the second tube l2, it beingevident that-the tubular body HI engages the bottonrof the annular-groove 30 in the 'flangefl. I

It will be noted that the outer peripheral edge 0fthe flange 21' is -roundedias: at-and that this flange 21 is of a substantially larger di-ameter than the externaldiameter-oftheouter tube:

ll' of the tubular body: Ill-and, thus,. yarn :passingbetweerr-a' point substantially in axial. alinementwith and inspaced.relati'ongto the upper end ofgthe spool' or"bobbin. in Figure-Land. the outersurfaceof the tubular body .lflrnaypass in engagement '1 with p the [peripheral edge of the" The head block-23 hasa longitudinally-extend? ing bore 41 therethrough which. .is. provided for the'reception of a suitable spindle or the like on whichithe spool may be mounted andthis' longi-j tudinally. extending bore flimayjpbe enlarge.d,,as. at50; if so desire.d',to serve in directing the spool.

onto the said spindle vor the boreffl may be. r tapered depending on the type. of'g'spi'ndle-on whichthespool is'to be mounted.

Referring t'o Figure 2; it'will be observed-that thehheadblock 23fhas a restrictedllportion.=51"

extending downwardly therefrom, this. restricted portion 5.! being-disposed remotelyfromthe restricted portion 32 lrelative to the. head. block; 23, and also being penetratedby the bore 511... A third inner tube or'tubular member 55,..of substantially less diameter. than. the inner diam-v eter of the .second tube 12 is adapted to fitsnuge 1y around the projectioni'l. of the headblock-lt Now,.the second head member :2! is SUbStfiH- tially identical to the. head; members-20,1. and the headmemberdl may =be*exactly identica-hto. .the.=.- head. member 20, if desired;l a-nd, therefore: the r parts associated-withrthe'headl'memlber 21; shall.

bear the sam-e. reference characters.aslilrewparts associated i with the. head memberi fll 'witli the prime notation added. However, since the seo- 0nd head memberl lis shown in Figures 1,2 and 4 as "serving in the capacity of a basemember; thes'econ'd'head member [2 I "does not have a projection such'as the projection 32 ,of the first memberbut'instead; abore 33' is. merely;

"nular groove intheinner' wallfof the seeond'tu be 'IZIQQi'I'hese. notches .114veachidefineg-atrelatil 'providedk forreception; of a suitable =spindlee-on the like; I 3 1 The second head-member! l' also- 15 providedwith: aabore 51'!-- ofisubstantially greaten dlameter:

bobbin.- or: spool" in Figure 1 0 is shown as beingsubstantially" larger 1 than the fiang :21 --of'- first; head member zfl and does not, necessarily: have :a smoothly: rounded peripheral edge sucl r as:-th'e edge- 46 of. the flange 2T since 1" does 'not ordinarily move past the lower flange Since the remaining structure of -the' lbwer 701 second) head member 2 1 is. identi'c "to -thatofi the upper or first head member 20 =-a furthewde scri'ptionthereof 'i's deemed unnecessary 'sinc'e' M Odififliz form of invention s Referring to Flguresfi to 1I,i,ino1usive,;}therfe;- will. be observedi'a. modifiedfformlofi spooho'i'bobe. bin. structure which? .i's.;simi1ar;.to.. the 's'truoturfe; shown in Figures'ltofi'inclusive'. I

The, .modifiedformoi the. inventiomhdhmiiss a tubular body broadly .designatedkatj 1.0 @Qand'fillker the bobbin or. spool shown, in Figure-2, the tubue. lar .hojdy 10f comprises a ..fir.s.t. lor ;outerl.-tube -,0r tubular member. I If which. is mounted onuanlinner. a or second tube IL-this. second tube"'l.2..preerably being metallic. and-.ithe ,outer tube ;'l'l...-preferabl$e beingof a. p1astic.orpressedfibenmaterialh inner. .or' second tubes-121' also has..a;.pli itality;.-of circularlyspaced ribs .or longitudinally, extending. projections: 13 ion theinner surfaee"thereof oD- posed ends ,of whi'chterminate...shoi:t ofitheo posed .en'ds. .offlthe. secondltube 91.2.; The. ribs are.-, also. provided with. coinciding. notches. grooves. .14 which, in-fcombination,. immanent..-

short projection 1.5;,the function of, 'wmmwm later described. A

Opposedends of .thesecondttubei'l-l are-{m to .slidably orlooselyfreeeiverlockingtmembers headblockmembers. aoianduaoc, thesehead-bloc members and .80 being. substantiall$}theisain 1' andfb'eing a partptfirst andsecon .respecti v' headl members broadly designated 'atel'l and! Sincejhepartsl; associatedrwith the :heaeimj' 1 bfers alxanaez.amsubstalntiaumhe.same;on the head. member .8 I" will .be. described like parts .aSsociatedl with. the: head, member. -fl.2 bearthe same. ref erence characterswiththep 'iinei. notation added and anysdifierencesibetweeriqthe. head-members arena 1.82 lwiufb'e c-learlygpointedj outlanddescribed... p

Thehead block. aosna an annular-groove thereinmwhich defines .outertland.

or disk-like portions 95 and 86, respectively. The outer and inner circular portions 85 and '86 of the head block 89 are provided with a plurality of circularly spaced coinciding grooves or notches 91, the notches 81 being so spaced as to coincide with the ribs I3 and the projections 15, which are actually a part of the ribs 13 when the head block 96 is positioned within the tubular body I0.

The outer circular portion 85 is provided with a plurality of circularly spaced bores 90 and the inner circular portion 86 is provided with a plurality of circularly spaced threaded bores 9|, which coincide with the bores 90 in the circular portion 85. The bores 90 are adapted to slidably receive screws 92 which are threadably embedded in the threaded bores 9|. The screws 92, like the screws 26 in the original form of the invention (Figure 3), are preferably of a type which are flush with the outer surface of a flange 93 of the head members 8| and 82 for securing the flange to the outer surface of the head block 80.

The head block 80 is provided with a longitudinally, extending and centrally disposed bore 95 into which the upper end of a relatively thin walled tube 96 is adapted to snugly fit. This third or inner tube 96 is of a substantially less diameter than the inner diameter of the second tube 12 so as to provide a dead air space between the second and third tubes 12 and 96 for insulating purposes. 7 Y

The third tube 96 has a pair of bushings I and NH inserted in opposed ends thereof and suitably secured therein as by a pressed fit. The bushings I99 and HH are spaced slightly from the outer ends of the tube 96 and are provided with coinciding tapered bores I02 and I93, respectively. These bores I02 and H13 may be straight or tapered and may be of the same size or of difierent sizes according to the particular spindle onto which the spool or bobbin is adapted to be placed.

It will be observed in Figure 8, that the medial portion of the flange 93 is provided witha circular recess I05 which is adapted to slidably receive the upper end of the tubular body 19 and against the bottom of which the tubular body 19 and the upper surface of the circular portion 85 of the head block 80 are adapted to be secured.

by any suitable means such as the screws 92.

In mounting the flange 93 on the upper. end of the tubular body as shown in Figure 8, the

head block 8| may either be loosely secured against the bottom of the recess I05 in the flange 93 o'r'the head block 8| may be inserted in the upper end of the tubular member with the notches 91 in alinement with the ribs 13 on the second tube 12.. It will be noted that the projections (Figure 11) are spaced slightly apart from'the outer end of the second tube 12, this spacing being substantially the 'same' as the thickness or the circular portion 85 of the head block 895' Thus, the head block '80 may be moved into the tube 12 until the circular portion 86 registers with the notches H and the grooves in the head 'b1ock'80 register with the proj ec-j tions 15. The head block 80 may then be partially' rotated so that the notches 61 and the ribs ll 'and" 15 are notin alinement after'which the flange 93 may be secured tightly against the head block iw as well' as against theupper end a: the tubular body 10 bytightening the screws 92, since the uppersurfaceof the circular portion 86 will bear against the lower or'1eft-' hand surfaces of the projections 15 in Figure 11.

The flange 93 is also provided with a bore ms in'which an invertedcup-shaped cap member I 01 is secured, as by a pressed flt. This inverted cup-shaped member I0! is of greater height than the vertical thickness of the flange 93 and projects into the upper end of the tube 96, the bushing I00 being spaced from the upper end of the tube 96 for this purpose. The inverted cupshaped member I01 has an opening H0 therethrough through which the upper end of a spindle or the like, not shown, may extend.

The lower head member 82 difiers from the upper head member 8| in that the flange 93 is provided with slot III in addition to the opening I06, this slot Ill being provided in lieu of the inverted cup-shaped member ID! in Figure 8. The slot I l l is for the well-known purpose of mounting the bobbin or spool on a spindle having a suitable key for engagement with the slot Hi to thus cause the bobbin to rotate with the spindle.

The bottom or second head member 62 also has a circular recess in the flange 93 of such diameter as to receive the lower end of the tubular body 10, the lower end of the second head block 86', and the lower end of the third tube 96 in Figure 8. The bushing [0| is preferably spaced from the lower end of the tube 96 if it is desired to have a projection from the medial portion of the flange 93'.

If so desired, one end of the other of the tube 95 may be threadably embedded in the corresponding head block or 80' and may be then secured prior to the head block and the third tube being mounted in the tubular body ID as shown in Figure 8.

When it is desired to remove the flange 93, the screws 92 may be loosened and the head BI and head block 80 may be partially rotated to wherethe tubular member 10- with the screws 92.still partially embedded in the threaded bores 9 I.

The purpose of the innermost tubular members.

or tubes 55 and 96 of the respective forms of the invention being spaced apart from the tubular bodies llland 10, respectively, is to provide a dead air space between the innermost tubes 55 and 96 and the respective tubular bodies I0 and 10 to thus serve as an insulator since most bobbins are subjected to excessive variations in temperature and humidity and this dead air space will serve in minimizing the amount of variation in length and diameter of the tubular bodies It and 19 which are usually caused as a result of these variations in temperature and humidity.

It is thus, seen that I have provided an improved bobbin which is relatively light in structure and having head members thereon which may be quickly removed and easily repaired or replaced. Also, I have provided a tubular member having internal ribs therein and I have further provided a disk adapted to operate in slots or grooves in said ribs for holding the disk in place whereby a head block may be placed against the disk and a flange may, in turn, be placed against the outer surface of the head block and the tubular member and secured by screws to the disk, there being suitable bores or grooves provided for the passage of the screws through the head block, to thus secure the flange against vtheouter surface of either end of the tubular member.

It is evident that the reinforcing or second tubes l2 and 12 of the respective tubular bodies It! and 19 may be of a plastic material if so desired, however, it is preferable that this tube be made of a magnesium or aluminum alloy. Also, the longitudinally extending ribs l2 and 19 in the respective tubular bodies--10 and :10 serve to .re- -inforce the respective tubular bodies d and :to such :an extent that they willwithstand a substantially: greater amount: of pressure and strain resulting from the-many types of syntheticlyarns now in use than ordinary tubes which havo not beenprovidedwitlrthe reinforcing [ribs and which have heretoforelbeen in ,useiin' themanufactureiof textile spools. "The :ribs and the relatively light -:weight of the material used informing the sec- -ond tubes associated with eachwo'f-the tubular bodies l0 and' l'fl do not add- -substantially to the weightofthe spool.

- Since the headblocks and flange disks of the :two :forms of spools shown in the drawings may -:be 50f -relatively light plastic material, -this will.

alsoaiminimize the weight ofithe spool assemblies :and this 1 unique "structure willpermit easy re- --placement of anyi of theparts of the epoch.

spools shown-in the :origin'al andmodified dorms -of--the:invention-may be'made of either a plastic on lighti metallic -m'ateri'a1: and this third :tube

-.pro.v :ides means to assist in placingthe spoolkon t-he spindle rapidly: andeasily. Y

:In' the l drawings and specification there has been set forth apreferred-embodimentof theinve ntion, and although specific -terms are --'em .ploye'dfthey areused in a genericTand descriptive sense vonly,- andnot for purposesof limitation, I ithe scope of-I'theinvention being defined in the claims. g

f I clairn: i I

1. A:spo'ol having a removableehead'member at at least one end thereof, said removable head member comprising a nangeg a head blockremovably mounted in said spool, a locking 'diskrem0vablymouhted=in said spool-,fsaidjsp ool hav ing a plurality of: circumferentially spaced ribs on the'inner surface thereof/said ribs having notches-therein adapted-to receive said-locking disk, said locking disk having spaced notches therein coinciding with saidyribsfsaid"lockingtherein," said head block havinga pilot portion extending through said bore-, and a handle member removably seoured tosaid pilot portion.

-2. A spool provided -Witha removable "head member atat leastone end thereof, said 'spool I comprising a first tubularmember, a second tu'bnlar 'memberfitted in the first-tubular member, a

third tubular memberof lesser-diameter than said second tubular member and spaced within said second: tubular member to form adead air space within the same for thermal insulationpurposes, said head-member including a flange-and a-locking-disk, saidspool having -a--plurality--o f circumferentially spaced ribs on the inner-'surface there of, said ribs having notches therein adaptd--to receive said locking disk, :said -1ocking'. disk-having. spacedv notches therein coinciding with-said ribs, ..said:locking disk being rotatable in said tube to .positiorr the notches. therein: out of aline :ment withssaid ribs, and screw means connecting said locking disk and saidlflange for securing the same to' the tube. I I I I a 3. A spool provided withia removable head member at at least one'end thereof,--saidspool comprising a 'first tubularmember, 'asecondtu'bu- -larmember adj acent the inner surface of said iribs bein 51 .01

including a. fiangeand. means for removably lock.-

in'gsaid flange on '.-the .endtofisaid tubular memibersicomprising .saidsecondtubular-member hav ing a. plurality of' spaced longitudinally extending ribs, said ribs-having notches therein, alock- -ingemember adapteditoi fit-in saidnotches, said :locking memberihavi'ngia pluralityof :notches tour-responding -.to. said ,ribs .Whereby, the locking member may; be: inserted in said spool ,With the notches :therein in alinement .with said ribs and .then be partially rotated in the notches in said :r-ibs :to move ;the .notches in the locking member out of alinement .With said ribs. and .screwmeans connecting saidi flange", and L said locking member. -A spooli co'mprisinga tubularibodyhaving a plurality =.of;'longitudina1ly-,extending ,ribs on, the inner isurfaceythereof, said ribs. ,havingsarplurality of notches. therein, a' -locking memberflrotatable insaid notches. at each" endiof said tubu .larf. body, said J locking members i having notches .thereinnspaced in lcoincidenceawith said ribs .to permittthe zlocking;members tobe removed from said tubular body, a head memberifor eachiend of; said tubular ..-body: and .means securing said headmembersrto said locking members to hold the head membersion the tubular body when the notches in.saidlockingmembers are out. of register-,with saidrribs.

-,5. A bobbin, spool and the likdcomprising a tubular. ,body: havingia plur,alityv of. spaced longi- .tudinallyv extendingwribs on :the inner surface thereof, said ribs ,,being.-notched. intermediate their, ends vand adjacent, opposed ends ,of the tubular ,body, ,saidanotches bein .-.circ.u1ar-ly ar- :ranged, a, head;member forveachend of said spoolgcomprisin iailocking disk; provided with a plurality. of circularly spaced notches in; its speariphery,g,a-. flangeimcmber; the notchesvdnwthe peripheryoof the locking ;.idis,k ,coincidi-ngiwwith the ribs in: said: tubular; bo y, i said 1ockins 1 disk :being memorably; mounted in isaidntnbular body,

andzymrtiallyrota-tablets outeoieregister position wi h respect osai :ribs. screw means connectin said' flange, and s idk disk. ,.-for securing the same in positiomatone-gdnd10f the tabular bo y- ;;Arsnq rstrnc nre compr sin -a ubular bod having a pluralitylsof spaced; longitudinally 36X;

{tendin iribsconzthe, iinner uriacethe intermediate their ends :adianentpppqsed nds;-of--the tubular body, said notches being circularly-arranged, a headv memiberizior each :end xjof said spool comprising a docking; disk -adaptedto be removably i mounted in;-saidztubulargbody and'p'rovided with a plural ityxof circularlyspaced notches in its. periphery, saidznotches'in'. the periphery of the locking disk coinciding with2'the :ribs 'inlsaid tubular :b0dy,-- a 'flia'ige, said: locking disk having a -'-plurality of circularly spaced 5 threaded bores therein, a plurality 10f screws *slidably: penetrating said ifiangean'd said threadedbores being -so positioned:re1ative-to saidnotches in the locking disk asrequire that the disk be partially rotated to *aline the bores with I said screws whereby, upon said partial rotation oi said disk inth'e notches in= said ribs, the ribs -wi-ll -prevent egress,

or: the disk from the tiibular body {as the -scre\vs thepute'r end of the tubular body;

are driven home to-th'us-sec-ure 'thefiang'e-against 7. A spool structure comprising a tubular body having a plurality of spaced longitudinally extending ribs on the interior thereof, a head member for at least one end of the tubular body comprising a head block adapted to be removably mounted in the end of the tubular body, a circular member having a plurality of circular spaced notches therein coinciding with the ribs in said tubular body and also having a plurality of threaded bores therein, the ribs of said tubular body being provided with notches intermediate their ends within which the circular member may have sliding rotational movement, a flange, screws securing the flange againstethe outer surface of the head block and the tubular body, said screws slidably penetrating the head block and being threadedly embedded in the threaded bores of said circular member, whereby the circular member may be partially rotated to where its notches do not coincide with the longitudinally extending ribs and the screws may be tightened to secure the flange against the outer edge of the tubular body.

8. A spool or bobbin comprising a tubular body, a flange adapted to be secured to each end of the tubular body, said tubular body having a plurality of circularly spaced longitudinally extending ribs on the inner surface thereof, a head block slidably mounted in each end of the tubular body and having notches therein coinciding with the ribs in the tubular body, said ribs having coinciding circularly arranged notches therein, said notches in the ribs being disposed inwardly relative to the corresponding head blocks, a disk adapted to fit in said notches in said ribs, said disk having a plurality of notches therein adapted to coincide with the ribs on said tubular body to permit ingress of the disk in the tubular body as it is moved into position to coincide with said notches in the ribs, said disk having a plurality of threaded bores therein, a plurality of screws slidably penetrating the flange at each end of the spool and being adapted to coincide with the threaded bores in the disk when said disk is partially rotated so that the notches therein do not coincide with notches in said ribs, and said screws also slidably penetrating the head block to thus secure the head block and the flange in position at each end of the tubular bobbin.

9. A spool comprising a tubular body, a flange adapted to be secured to each end of the tubular body, said tubular body having a plurality of circular spaced ribs on the inner surface thereof, a head block slidably mounted in each end of the tubular body and having notches therein coinciding with the ribs in the tubular body,-said ribs having coinciding circularly arranged notches therein, said notches in the ribs being. disposed inwardly relative to the corresponding. head blocks, a disk adapted to fit in said notches, said disk having a plurality of notches therein adapted to coincide with the ribson said'tubular body to permit ingress of the disk in the tubular body as it is moved into position to coincide with said notches in the ribs, said disk having a plurality of threaded bores therein, a plurality of screws slidably penetrating the flange at each end of the spool and being adapted to coincide with the threaded bores in the disk when said disk is partially rotated so that the notches therein do not coincide with the notches in said ribs, said screws also slidably penetrating the head block to thus secure the head block and th flange in position at each end of the tubular bobbin. an inner tubular member of substantially less outside diameter than the inner diameter of the tubular body and adapted to be secured at opposed ends thereof to the corresponding head blocks to thus provide a dead air space between the proximate surfaces of the Walls of the tubular body and the inner tubular member for insulation purposes.

10. A spool structure comprising a tubular body member including an outer tube of a smooth relatively close-grained material, a second tube on which the outer tube is fixedly mounted, said second tube serving as a reinforcing tube and having a plurality of longitudinally extending ribs therein provided with notches adjacent opposed ends thereof, the remote ends of the ribs being spaced substantially from the outer end of the tubular body member, a head member for each end of the tubular body comprising a head block having an annular groove therein, said annular groove defining an outer and an inner circular portion, said circular portions having coinciding notches in the outer peripheries thereof, said notches being spaced so as to aline with the ribs on the interior of the tubular body, a flange, means for securing the flange against the outer surface of the outer circular portion and the outer end of the tubular body including a plurality of screws threadedly penetrating the flange and being threadedly embedded at their free ends in at least one of the circular portions of the head block, said head block being adapted to be removably mounted in the second tubular member and partially rotated so that the notches therein are out-ofregister with the ribs and the outer circular portion being adapted to fit against the outer ends of said ribs so as to permit the head member to be partially rotated and, upon tightening said screws, the head member will lock the flange against the outer edge of the tubular body member.

11. A bobbin, spool and the like, comprising a tubular body having a plurality of longitudinally extending ribs on the inner surface thereof, said ribs being notched intermediate their ends adjacent at least one end of the tubular body, said notches being circularly arranged, a head memberfor at least one end of said spool comprising a locking disk provided with a plurality of circularly spaced notches in its periphery, said notches in the periphery of the locking disk being adapted to coincide with the ribs in said tubular body, said disk being adapted to be removably mounted in said tubular body, a flange, a plurality of screws slidably penetrating said flange and threadedly embedded in said disk, said looking disk having a plurality of circularly spaced threaded bores therein, so arranged that said disk may be partially rotated to where the notches therein are out of register with the ribs in said tubular member and said screws may be tightened to secure the flange onto said tubular member.

12. A spool structure comprising a tubular body member including an outer tube of a smooth relatively close-grained material, a second tube on which the outertube is fixedly mounted, said second tube serving as a reinforcing tube and having a plurality of longitudinally extending ribs therein provided with notches adjacent opposed ends thereof, the remote ends of the ribs being spaced substantially from the outer end oi .the tubular body member, a head member for each end of the tubular body comprising a locking member having an annular groove therein, said annular groove defining an outer and an inner circular portion, said circular portions having coinciding notches in the outer peripheries thereof, said notches in said circular portions being spaced so as to aline with the ribs on the interior of the tubular body, a flange, means for securing the flange against the outer surface of the outer circular portion and the outer end of the tubular body including a plurality of screws threadedly penetrating the flange and being threadedly embedded at their free ends in at least one of the circular portions of the head block,

said head block being adapted to be removably mounted in the second tubular member and partially rotated so that the notches therein are outof-register with the ribs and the outer circular portion being adapted to fit against the outer ends of said ribs so as to permit the head member to be partially rotated and, upon tightening said screws, the head member will lock the flange against the outer edge of the tubular body member, a third tube of substantially less outside diameter than the inside diameter of the second tube and extending substantially from one end to the other of the second tube, at least one of the head blocks having a bore therein for 'slidable reception of the one end of the third tubular member, the other of the head blocks having an inwardly projecting portion therewith snugly embedded in the other end of the third tubular member and said spacing between the second and third tubular members serving asa dead air space for thermal insulation purposes.

13. A spool comprising a tubular body having a plurality of longitudinally extending ribs on the inner surface thereof, said ribs having a plurality of notches therein, a locking member rotatable in said notches at each end of said tubular body, said locking members having notches therein spaced in coincidence with said ribs to permit the locking member to be removed from said tubular body, a head member for each end of said tubular body and screw means penetrating said head members and threadedly embedded in said locking members for securing said head members to said locking members to hold the head members on the tubular body when the notches in said locking members are out of register with said ribs.

14. A spool comprising an outer tubular body, an inner tubular body concentric with the outer tubular body and secured thereto and having a plurality of longitudinally extending ribs on the inner surface thereof, said ribs having a plucumferentially spaced ribs each having notches therein adapted to receive said locking members and said lockin members having notches therein 1 so positioned as to coincide with said ribs whereby the locking members may be removably mounted in said tubular body and partially rotated in the notches in said ribs to move the notches in said locking members out of alinement with said ribs and screw means connecting said removable heads to said locking members.

16. A spool having a tubular body and being provided with removable heads at each end of said tubular body, said tubular body having a plurality of circumferentially spaced ribs on the inner surface thereof, a locking disk positioned in each end of said tubular body, said circumferentially spaced ribs each having notches therein, said notches in said ribs being circumferentially spaced around the inner periphery of said tubular body and spaced from each end of said tubular body and adapted to receive said locking disks and said locking disks having notches therein so positioned as to coincide with said ribs whereby the locking disks may be inserted in said tubular body and partially rotated in the notches in said ribs to move the notches in said locking members out of alinement with said ribs, a head block positioned in each end of said tubular body between said locking disks and said removable heads and screw means penetrating said head blocks and connecting said heads to said locking disks.

17. A spool having a tubular body and being provided with removable heads at each end of said tubular body, said tubular body having a rality of notches therein, said notches being circularly arranged adjacent each end of the spool, a locking member rotatable in said notches at each end of said spool, said locking member having notches therein spaced in coincidence with said ribs to permit the locking member to be removed from said tubular body, a head member for each end of said tubular body and screw means securing said head members to said lockin members to hold the head members on the spool when the notches in said locking members are out of register with said ribs.

15. A spool having a tubular body and being provided with removable heads at each end of said tubular body, said tubular body having a plurality of circumferentially spaced ribs on the inner surface thereof, a locking member posiplurality of circumierentially spaced ribs on the inner surface thereof, a locking member positioned in each end of said tubular body. said circumferentially spaced ribs each having notches therein circumferentially spaced about the inner periphery of the tubular body spaced from each end thereof, said ribs stopping short of the ends of said tubular body, said locking members each having an annular groove therein defining inner and outer circular portions adapted respectively to fit into the notches in said ribs and the space defined by the endsof said ribs, and said inner circular portion having notches therein so positioned as to coincide with said ribs whereby the locking members may be removably mounted in said tubular body and partially rotated in the notches in said ribs to move the notches in said inner circular portions of the locking members out of alinement with said ribs and screw means connecting said heads to said locking members.

JESSE R. MOSS.

REFERENCES CITED The following references are of record in the file of this patent:

UNITED STATES PATENTS McCaskie Jan. 16, 1951 

